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VM 25Diaphragm valve

Overview

  • materials with high chemical resistance
  • high conductance, low leakage rate
  • flow control possible
  • gas-tight against atmosphere in both directions
Articleno. 20664011
On demand

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main product photo

Diaphragm valve in action

Diaphragm in-line valve VM 25

VM series valves are hand-operated diaphragm valves. They are used, e.g., as isolation valves, air-admittance valves or manual-control valves. By rotation of the wheel a flexible PTFE diaphragm is moved and pressed against the stainless steel seating or removed from it, closing and opening the valve, respectively. The gas-contacting parts are made of stainless steel and PTFE offering a good resistance to corrosive gases and vapors.


Technical data and graphs

Upper ambient temperature (operation) 60 °C
Lower ambient temperature (operation) 0 °C
Max. gas temperature 80 °C
Flange connection small flange KF DN 25
Operation Manual
Leakage rate 1 x 10-4 mbar l/s
Fitting length between flanges 100 mm

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Diaphragm valve in action

Diaphragm in-line valve VM 25

VM series valves are hand-operated diaphragm valves. They are used, e.g., as isolation valves, air-admittance valves or manual-control valves. By rotation of the wheel a flexible PTFE diaphragm is moved and pressed against the stainless steel seating or removed from it, closing and opening the valve, respectively. The gas-contacting parts are made of stainless steel and PTFE offering a good resistance to corrosive gases and vapors.


Technical data and graphs

Upper ambient temperature (operation) 60 °C
Lower ambient temperature (operation) 0 °C
Max. gas temperature 80 °C
Flange connection small flange KF DN 25
Operation Manual
Leakage rate 1 x 10-4 mbar l/s
Fitting length between flanges 100 mm